libmpcodecs/vd_ffmpeg.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <assert.h>
   4 #include <time.h>
   5
   6 #include "config.h"
   7 #include "mp_msg.h"
   8 #include "help_mp.h"
   9 #include "options.h"
  10 #include "av_opts.h"
  11
  12 #include "libavutil/common.h"
  13 #include "libavutil/intreadwrite.h"
  14 #include "mpbswap.h"
  15 #include "fmt-conversion.h"
  16
  17 #include "vd_internal.h"
  18
  19 static const vd_info_t info = {
  20     "FFmpeg's libavcodec codec family",
  21     "ffmpeg",
  22     "A'rpi",
  23     "A'rpi, Michael, Alex",
  24     "native codecs"
  25 };
  26
  27 LIBVD_EXTERN(ffmpeg)
  28
  29 #include "libavcodec/avcodec.h"
  30
  31 #if CONFIG_XVMC
  32 #include "libavcodec/xvmc.h"
  33 #endif
  34
  35 int avcodec_initialized=0;
  36
  37 typedef struct {
  38     AVCodecContext *avctx;
  39     AVFrame *pic;
  40     enum PixelFormat pix_fmt;
  41     int do_slices;
  42     int do_dr1;
  43     int vo_initialized;
  44     int best_csp;
  45     int b_age;
  46     int ip_age[2];
  47     int qp_stat[32];
  48     double qp_sum;
  49     double inv_qp_sum;
  50     int ip_count;
  51     int b_count;
  52     AVRational last_sample_aspect_ratio;
  53     int lowres;
  54 } vd_ffmpeg_ctx;
  55
  56 #include "m_option.h"
  57
  58 static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
  59 static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
  60 static void draw_slice(struct AVCodecContext *s, const AVFrame *src,
  61                        int offset[4], int y, int type, int height);
  62
  63 static enum PixelFormat get_format(struct AVCodecContext *avctx,
  64                                    const enum PixelFormat *pix_fmt);
  65
  66 const m_option_t lavc_decode_opts_conf[]={
  67     OPT_INTRANGE("bug", lavc_param.workaround_bugs, 0, -1, 999999),
  68     OPT_INTRANGE("er", lavc_param.error_resilience, 0, 0, 99),
  69     OPT_FLAG_ON("gray", lavc_param.gray, 0),
  70     OPT_INTRANGE("idct", lavc_param.idct_algo, 0, 0, 99),
  71     OPT_INTRANGE("ec", lavc_param.error_concealment, 0, 0, 99),
  72     OPT_FLAG_ON("vstats", lavc_param.vstats, 0),
  73     OPT_INTRANGE("debug", lavc_param.debug, 0, 0, 9999999),
  74     OPT_INTRANGE("vismv", lavc_param.vismv, 0, 0, 9999999),
  75     OPT_INTRANGE("st", lavc_param.skip_top, 0, 0, 999),
  76     OPT_INTRANGE("sb", lavc_param.skip_bottom, 0, 0, 999),
  77     OPT_FLAG_CONSTANTS("fast", lavc_param.fast, 0, 0, CODEC_FLAG2_FAST),
  78     OPT_STRING("lowres", lavc_param.lowres_str, 0),
  79     OPT_STRING("skiploopfilter", lavc_param.skip_loop_filter_str, 0),
  80     OPT_STRING("skipidct", lavc_param.skip_idct_str, 0),
  81     OPT_STRING("skipframe", lavc_param.skip_frame_str, 0),
  82     OPT_INTRANGE("threads", lavc_param.threads, 0, 1, 8),
  83     OPT_FLAG_CONSTANTS("bitexact", lavc_param.bitexact, 0, 0, CODEC_FLAG_BITEXACT),
  84     OPT_STRING("o", lavc_param.avopt, 0),
  85     {NULL, NULL, 0, 0, 0, 0, NULL}
  86 };
  87
  88 static enum AVDiscard str2AVDiscard(char *str) {
  89     if (!str)                               return AVDISCARD_DEFAULT;
  90     if (strcasecmp(str, "none"   ) == 0)    return AVDISCARD_NONE;
  91     if (strcasecmp(str, "default") == 0)    return AVDISCARD_DEFAULT;
  92     if (strcasecmp(str, "nonref" ) == 0)    return AVDISCARD_NONREF;
  93     if (strcasecmp(str, "bidir"  ) == 0)    return AVDISCARD_BIDIR;
  94     if (strcasecmp(str, "nonkey" ) == 0)    return AVDISCARD_NONKEY;
  95     if (strcasecmp(str, "all"    ) == 0)    return AVDISCARD_ALL;
  96     mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
  97     return AVDISCARD_DEFAULT;
  98 }
  99
 100 // to set/get/query special features/parameters
 101 static int control(sh_video_t *sh, int cmd, void *arg, ...){
 102     vd_ffmpeg_ctx *ctx = sh->context;
 103     AVCodecContext *avctx = ctx->avctx;
 104     switch(cmd){
 105     case VDCTRL_QUERY_FORMAT:
 106     {
 107         int format =(*((int *)arg));
 108         if(format == ctx->best_csp) return CONTROL_TRUE;//supported
 109         // possible conversions:
 110         switch(format){
 111         case IMGFMT_YV12:
 112         case IMGFMT_IYUV:
 113         case IMGFMT_I420:
 114             // "converted" using pointer/stride modification
 115             if(avctx->pix_fmt==PIX_FMT_YUV420P) return CONTROL_TRUE;// u/v swap
 116             if(avctx->pix_fmt==PIX_FMT_YUV422P && !ctx->do_dr1) return CONTROL_TRUE;// half stride
 117             break;
 118 #if CONFIG_XVMC
 119         case IMGFMT_XVMC_IDCT_MPEG2:
 120         case IMGFMT_XVMC_MOCO_MPEG2:
 121             if(avctx->pix_fmt==PIX_FMT_XVMC_MPEG2_IDCT) return CONTROL_TRUE;
 122 #endif
 123         }
 124         return CONTROL_FALSE;
 125     }
 126     case VDCTRL_RESYNC_STREAM:
 127         avcodec_flush_buffers(avctx);
 128         return CONTROL_TRUE;
 129     case VDCTRL_QUERY_UNSEEN_FRAMES:
 130         return avctx->has_b_frames + 10;
 131     }
 132     return CONTROL_UNKNOWN;
 133 }
 134
 135 static void mp_msp_av_log_callback(void *ptr, int level, const char *fmt, va_list vl)
 136 {
 137     static int print_prefix=1;
 138     AVClass *avc= ptr ? *(AVClass **)ptr : NULL;
 139     int type= MSGT_FIXME;
 140     int mp_level;
 141     char buf[256];
 142
 143     switch(level){
 144     case AV_LOG_DEBUG:  mp_level= MSGL_V   ; break;
 145     case AV_LOG_INFO :  mp_level= MSGL_INFO; break;
 146     case AV_LOG_ERROR:  mp_level= MSGL_ERR ; break;
 147     default          :  mp_level= MSGL_ERR ; break;
 148     }
 149
 150     if (!mp_msg_test(type, mp_level)) return;
 151
 152     if(ptr){
 153         if(!strcmp(avc->class_name, "AVCodecContext")){
 154             AVCodecContext *s= ptr;
 155             if(s->codec){
 156                 if(s->codec->type == CODEC_TYPE_AUDIO){
 157                     if(s->codec->decode)
 158                         type= MSGT_DECAUDIO;
 159                 }else if(s->codec->type == CODEC_TYPE_VIDEO){
 160                     if(s->codec->decode)
 161                         type= MSGT_DECVIDEO;
 162                 }
 163                 //FIXME subtitles, encoders (what msgt for them? there is no appropriate ...)
 164             }
 165         }else if(!strcmp(avc->class_name, "AVFormatContext")){
 166 #if 0 //needs libavformat include FIXME iam too lazy to do this cleanly, probably the whole should be moved out of this file ...
 167             AVFormatContext *s= ptr;
 168             if(s->iformat)
 169                 type= MSGT_DEMUXER;
 170             else if(s->oformat)
 171                 type= MSGT_MUXER;
 172 #endif
 173         }
 174     }
 175
 176     if(print_prefix && avc) {
 177         mp_msg(type, mp_level, "[%s @ %p]", avc->item_name(ptr), avc);
 178     }
 179
 180     print_prefix= strchr(fmt, '\n') != NULL;
 181     vsnprintf(buf, sizeof(buf), fmt, vl);
 182     mp_msg(type, mp_level, buf);
 183 }
 184
 185 // init driver
 186 static int init(sh_video_t *sh){
 187     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 188     AVCodecContext *avctx;
 189     vd_ffmpeg_ctx *ctx;
 190     AVCodec *lavc_codec;
 191     int lowres_w=0;
 192     int do_vis_debug= lavc_param->vismv || (lavc_param->debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
 193
 194     if(!avcodec_initialized){
 195         avcodec_init();
 196         avcodec_register_all();
 197         avcodec_initialized=1;
 198         av_log_set_callback(mp_msp_av_log_callback);
 199     }
 200
 201     ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
 202     if (!ctx)
 203         return 0;
 204     memset(ctx, 0, sizeof(vd_ffmpeg_ctx));
 205
 206     lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
 207     if(!lavc_codec){
 208         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MissingLAVCcodec, sh->codec->dll);
 209         uninit(sh);
 210         return 0;
 211     }
 212
 213     if(sh->opts->vd_use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
 214         ctx->do_slices=1;
 215
 216     if(lavc_codec->capabilities&CODEC_CAP_DR1 && !do_vis_debug && lavc_codec->id != CODEC_ID_H264 && lavc_codec->id != CODEC_ID_INTERPLAY_VIDEO && lavc_codec->id != CODEC_ID_ROQ)
 217         ctx->do_dr1=1;
 218     if (lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
 219         ctx->do_dr1=1;
 220     ctx->b_age= ctx->ip_age[0]= ctx->ip_age[1]= 256*256*256*64;
 221     ctx->ip_count= ctx->b_count= 0;
 222
 223     ctx->pic = avcodec_alloc_frame();
 224     ctx->avctx = avcodec_alloc_context();
 225     avctx = ctx->avctx;
 226     avctx->opaque = sh;
 227
 228 #if CONFIG_VDPAU
 229     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU){
 230         avctx->get_format = get_format;
 231         avctx->draw_horiz_band = draw_slice;
 232         avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 233     }
 234 #endif /* CONFIG_VDPAU */
 235 #if CONFIG_XVMC
 236     if(lavc_codec->capabilities & CODEC_CAP_HWACCEL){
 237         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedCodec);
 238         assert(ctx->do_dr1);//these are must to!
 239         assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
 240         avctx->get_format= get_format;//for now only this decoder will use it
 241         avctx->draw_horiz_band = draw_slice;
 242         avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 243     }
 244 #endif /* CONFIG_XVMC */
 245     if(ctx->do_dr1){
 246         avctx->flags|= CODEC_FLAG_EMU_EDGE;
 247         avctx->get_buffer= get_buffer;
 248         avctx->release_buffer= release_buffer;
 249         avctx->reget_buffer= get_buffer;
 250     }
 251
 252     avctx->flags|= lavc_param->bitexact;
 253
 254     avctx->width = sh->disp_w;
 255     avctx->height= sh->disp_h;
 256     avctx->workaround_bugs= lavc_param->workaround_bugs;
 257     avctx->error_recognition= lavc_param->error_resilience;
 258     if(lavc_param->gray) avctx->flags|= CODEC_FLAG_GRAY;
 259     avctx->flags2|= lavc_param->fast;
 260     avctx->codec_tag= sh->format;
 261     avctx->stream_codec_tag= sh->video.fccHandler;
 262     avctx->idct_algo= lavc_param->idct_algo;
 263     avctx->error_concealment= lavc_param->error_concealment;
 264     avctx->debug= lavc_param->debug;
 265     if (lavc_param->debug)
 266         av_log_set_level(AV_LOG_DEBUG);
 267     avctx->debug_mv= lavc_param->vismv;
 268     avctx->skip_top   = lavc_param->skip_top;
 269     avctx->skip_bottom= lavc_param->skip_bottom;
 270     if(lavc_param->lowres_str != NULL)
 271     {
 272         sscanf(lavc_param->lowres_str, "%d,%d", &ctx->lowres, &lowres_w);
 273         if(ctx->lowres < 1 || ctx->lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
 274             ctx->lowres = 0;
 275         avctx->lowres = ctx->lowres;
 276     }
 277     avctx->skip_loop_filter = str2AVDiscard(lavc_param->skip_loop_filter_str);
 278     avctx->skip_idct = str2AVDiscard(lavc_param->skip_idct_str);
 279     avctx->skip_frame = str2AVDiscard(lavc_param->skip_frame_str);
 280
 281     if(lavc_param->avopt){
 282         if(parse_avopts(avctx, lavc_param->avopt) < 0){
 283             mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_param->avopt);
 284             uninit(sh);
 285             return 0;
 286         }
 287     }
 288
 289     mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
 290     switch (sh->format) {
 291     case mmioFOURCC('S','V','Q','3'):
 292     /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
 293        in the phony AVI header if demux_lavf is used. The first case is
 294        handled here; the second case falls through to the next section. */
 295         if (sh->ImageDesc) {
 296             avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
 297             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 298             memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
 299             break;
 300         }
 301         /* fallthrough */
 302
 303     case mmioFOURCC('A','V','R','n'):
 304     case mmioFOURCC('M','J','P','G'):
 305     /* AVRn stores huffman table in AVI header */
 306     /* Pegasus MJPEG stores it also in AVI header, but it uses the common
 307        MJPG fourcc :( */
 308         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 309             break;
 310         avctx->flags |= CODEC_FLAG_EXTERN_HUFF;
 311         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 312         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 313         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 314
 315 #if 0
 316         {
 317             int x;
 318             uint8_t *p = avctx->extradata;
 319
 320             for (x=0; x<avctx->extradata_size; x++)
 321                 mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
 322             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
 323         }
 324 #endif
 325         break;
 326
 327     case mmioFOURCC('R', 'V', '1', '0'):
 328     case mmioFOURCC('R', 'V', '1', '3'):
 329     case mmioFOURCC('R', 'V', '2', '0'):
 330     case mmioFOURCC('R', 'V', '3', '0'):
 331     case mmioFOURCC('R', 'V', '4', '0'):
 332         if(sh->bih->biSize<sizeof(*sh->bih)+8){
 333             /* only 1 packet per frame & sub_id from fourcc */
 334             avctx->extradata_size= 8;
 335             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 336             ((uint32_t *)avctx->extradata)[0] = 0;
 337             ((uint32_t *)avctx->extradata)[1] =
 338                 (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
 339         } else {
 340             /* has extra slice header (demux_rm or rm->avi streamcopy) */
 341             avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 342             avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 343             memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 344         }
 345         avctx->sub_id= AV_RB32(avctx->extradata+4);
 346
 347 //        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
 348         break;
 349
 350     default:
 351         if (!sh->bih || sh->bih->biSize <= sizeof(BITMAPINFOHEADER))
 352             break;
 353         avctx->extradata_size = sh->bih->biSize-sizeof(BITMAPINFOHEADER);
 354         avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
 355         memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
 356         break;
 357     }
 358     /* Pass palette to codec */
 359     if (sh->bih && (sh->bih->biBitCount <= 8)) {
 360         avctx->palctrl = calloc(1, sizeof(AVPaletteControl));
 361         avctx->palctrl->palette_changed = 1;
 362         if (sh->bih->biSize-sizeof(BITMAPINFOHEADER))
 363             /* Palette size in biSize */
 364             memcpy(avctx->palctrl->palette, sh->bih+1,
 365                    FFMIN(sh->bih->biSize-sizeof(BITMAPINFOHEADER), AVPALETTE_SIZE));
 366         else
 367             /* Palette size in biClrUsed */
 368             memcpy(avctx->palctrl->palette, sh->bih+1,
 369                    FFMIN(sh->bih->biClrUsed * 4, AVPALETTE_SIZE));
 370         }
 371
 372     if(sh->bih)
 373         avctx->bits_per_coded_sample= sh->bih->biBitCount;
 374
 375     if(lavc_param->threads > 1)
 376         avcodec_thread_init(avctx, lavc_param->threads);
 377     /* open it */
 378     if (avcodec_open(avctx, lavc_codec) < 0) {
 379         mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantOpenCodec);
 380         uninit(sh);
 381         return 0;
 382     }
 383     mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
 384     return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
 385 }
 386
 387 // uninit driver
 388 static void uninit(sh_video_t *sh){
 389     vd_ffmpeg_ctx *ctx = sh->context;
 390     AVCodecContext *avctx = ctx->avctx;
 391
 392     if(sh->opts->lavc_param.vstats){
 393         int i;
 394         for(i=1; i<32; i++){
 395             mp_msg(MSGT_DECVIDEO, MSGL_INFO, "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
 396         }
 397         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_ArithmeticMeanOfQP,
 398             ctx->qp_sum / avctx->coded_frame->coded_picture_number,
 399             1.0/(ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number)
 400             );
 401     }
 402
 403     if (avctx) {
 404         if (avctx->codec && avcodec_close(avctx) < 0)
 405             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantCloseCodec);
 406
 407         av_freep(&avctx->extradata);
 408         av_freep(&avctx->palctrl);
 409         av_freep(&avctx->slice_offset);
 410     }
 411
 412     av_freep(&avctx);
 413     av_freep(&ctx->pic);
 414     if (ctx)
 415         free(ctx);
 416 }
 417
 418 static void draw_slice(struct AVCodecContext *s,
 419                        const AVFrame *src, int offset[4],
 420                        int y, int type, int height){
 421     sh_video_t *sh = s->opaque;
 422     uint8_t *source[3]= {src->data[0] + offset[0], src->data[1] + offset[1], src->data[2] + offset[2]};
 423 #if 0
 424     int start=0, i;
 425     int width= s->width;
 426     vd_ffmpeg_ctx *ctx = sh->context;
 427     int skip_stride= ((width << ctx->lowres)+15)>>4;
 428     uint8_t *skip= &s->coded_frame->mbskip_table[(y>>4)*skip_stride];
 429     int threshold= s->coded_frame->age;
 430     if(s->pict_type!=B_TYPE){
 431         for(i=0; i*16<width+16; i++){
 432             if(i*16>=width || skip[i]>=threshold){
 433                 if(start==i) start++;
 434                 else{
 435                     uint8_t *src2[3]= {src[0] + start*16,
 436                                      src[1] + start*8,
 437                                      src[2] + start*8};
 438 //printf("%2d-%2d x %d\n", start, i, y);
 439                     mpcodecs_draw_slice (sh, src2, stride, (i-start)*16, height, start*16, y);
 440                     start= i+1;
 441                 }
 442             }
 443         }
 444     }else
 445 #endif
 446     if (y < sh->disp_h) {
 447         mpcodecs_draw_slice (sh, source, src->linesize, sh->disp_w, (y+height)<=sh->disp_h?height:sh->disp_h-y, 0, y);
 448     }
 449 }
 450
 451
 452 static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt){
 453     vd_ffmpeg_ctx *ctx = sh->context;
 454     AVCodecContext *avctx = ctx->avctx;
 455     float aspect= av_q2d(avctx->sample_aspect_ratio) * avctx->width / avctx->height;
 456     int width, height;
 457
 458     width = avctx->width;
 459     height = avctx->height;
 460
 461     // HACK!
 462     // if sh->ImageDesc is non-NULL, it means we decode QuickTime(tm) video.
 463     // use dimensions from BIH to avoid black borders at the right and bottom.
 464     if (sh->bih && sh->ImageDesc) {
 465         width = sh->bih->biWidth >> ctx->lowres;
 466         height = sh->bih->biHeight >> ctx->lowres;
 467     }
 468
 469      // it is possible another vo buffers to be used after vo config()
 470      // lavc reset its buffers on width/heigh change but not on aspect change!!!
 471     if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
 472         width != sh->disp_w  ||
 473         height != sh->disp_h ||
 474         pix_fmt != ctx->pix_fmt ||
 475         !ctx->vo_initialized)
 476     {
 477         mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
 478         if (sh->aspect == 0 ||
 479             av_cmp_q(avctx->sample_aspect_ratio,
 480                      ctx->last_sample_aspect_ratio))
 481             sh->aspect = aspect;
 482         ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
 483         sh->disp_w = width;
 484         sh->disp_h = height;
 485         ctx->pix_fmt = pix_fmt;
 486         ctx->best_csp = pixfmt2imgfmt(pix_fmt);
 487         if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, ctx->best_csp))
 488             return -1;
 489         ctx->vo_initialized = 1;
 490     }
 491     return 0;
 492 }
 493
 494 static int get_buffer(AVCodecContext *avctx, AVFrame *pic){
 495     sh_video_t *sh = avctx->opaque;
 496     vd_ffmpeg_ctx *ctx = sh->context;
 497     mp_image_t *mpi=NULL;
 498     int flags= MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
 499     int type= MP_IMGTYPE_IPB;
 500     int width= avctx->width;
 501     int height= avctx->height;
 502     int align=15;
 503 //printf("get_buffer %d %d %d\n", pic->reference, ctx->ip_count, ctx->b_count);
 504     if(avctx->pix_fmt == PIX_FMT_YUV410P)
 505         align=63; //yes seriously, its really needed (16x16 chroma blocks in SVQ1 -> 64x64)
 506
 507     if (pic->buffer_hints) {
 508         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n", pic->buffer_hints);
 509         type = MP_IMGTYPE_TEMP;
 510         if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
 511             flags |= MP_IMGFLAG_READABLE;
 512         if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
 513             type = MP_IMGTYPE_STATIC;
 514             flags |= MP_IMGFLAG_PRESERVE;
 515         }
 516         if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
 517             type = MP_IMGTYPE_STATIC;
 518             flags |= MP_IMGFLAG_PRESERVE;
 519         }
 520         flags|=(!avctx->hurry_up && ctx->do_slices) ?
 521                  MP_IMGFLAG_DRAW_CALLBACK:0;
 522         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
 523     } else {
 524         if(!pic->reference){
 525             ctx->b_count++;
 526             flags|=(!avctx->hurry_up && ctx->do_slices) ?
 527                      MP_IMGFLAG_DRAW_CALLBACK:0;
 528         }else{
 529             ctx->ip_count++;
 530             flags|= MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE
 531                       | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
 532         }
 533     }
 534
 535     if(init_vo(sh, avctx->pix_fmt) < 0){
 536         avctx->release_buffer= avcodec_default_release_buffer;
 537         avctx->get_buffer= avcodec_default_get_buffer;
 538         return avctx->get_buffer(avctx, pic);
 539     }
 540
 541     if (IMGFMT_IS_XVMC(ctx->best_csp) || IMGFMT_IS_VDPAU(ctx->best_csp)) {
 542         type =  MP_IMGTYPE_NUMBERED | (0xffff << 16);
 543     } else
 544     if (!pic->buffer_hints) {
 545         if(ctx->b_count>1 || ctx->ip_count>2){
 546             mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_DRIFailure);
 547
 548             ctx->do_dr1=0; //FIXME
 549             avctx->get_buffer= avcodec_default_get_buffer;
 550             return avctx->get_buffer(avctx, pic);
 551         }
 552
 553         if(avctx->has_b_frames){
 554             type= MP_IMGTYPE_IPB;
 555         }else{
 556             type= MP_IMGTYPE_IP;
 557         }
 558         mp_msg(MSGT_DECVIDEO, MSGL_DBG2, type== MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
 559     }
 560
 561     mpi= mpcodecs_get_image(sh, type, flags,
 562                         (width+align)&(~align), (height+align)&(~align));
 563     if (!mpi) return -1;
 564
 565     // ok, let's see what did we get:
 566     if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK &&
 567        !(mpi->flags&MP_IMGFLAG_DIRECT)){
 568         // nice, filter/vo likes draw_callback :)
 569         avctx->draw_horiz_band= draw_slice;
 570     } else
 571         avctx->draw_horiz_band= NULL;
 572     if(IMGFMT_IS_VDPAU(mpi->imgfmt)) {
 573         avctx->draw_horiz_band= draw_slice;
 574     }
 575 #if CONFIG_XVMC
 576     if(IMGFMT_IS_XVMC(mpi->imgfmt)) {
 577         struct xvmc_pix_fmt *render = mpi->priv; //same as data[2]
 578         avctx->draw_horiz_band= draw_slice;
 579         if(!avctx->xvmc_acceleration) {
 580             mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_McGetBufferShouldWorkOnlyWithXVMC);
 581             assert(0);
 582             exit(1);
 583 //            return -1;//!!fixme check error conditions in ffmpeg
 584         }
 585         if(!(mpi->flags & MP_IMGFLAG_DIRECT)) {
 586             mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MPCODECS_OnlyBuffersAllocatedByVoXvmcAllowed);
 587             assert(0);
 588             exit(1);
 589 //            return -1;//!!fixme check error conditions in ffmpeg
 590         }
 591         if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 592             mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::get_buffer (xvmc render=%p)\n", render);
 593         assert(render != 0);
 594         assert(render->xvmc_id == AV_XVMC_ID);
 595         render->state |= AV_XVMC_STATE_PREDICTION;
 596     }
 597 #endif
 598
 599     // Palette support: libavcodec copies palette to *data[1]
 600     if (mpi->bpp == 8)
 601         mpi->planes[1] = av_malloc(AVPALETTE_SIZE);
 602
 603     pic->data[0]= mpi->planes[0];
 604     pic->data[1]= mpi->planes[1];
 605     pic->data[2]= mpi->planes[2];
 606
 607 #if 0
 608     assert(mpi->width >= ((width +align)&(~align)));
 609     assert(mpi->height >= ((height+align)&(~align)));
 610     assert(mpi->stride[0] >= mpi->width);
 611     if(mpi->imgfmt==IMGFMT_I420 || mpi->imgfmt==IMGFMT_YV12 || mpi->imgfmt==IMGFMT_IYUV){
 612         const int y_size= mpi->stride[0] * (mpi->h-1) + mpi->w;
 613         const int c_size= mpi->stride[1] * ((mpi->h>>1)-1) + (mpi->w>>1);
 614
 615         assert(mpi->planes[0] > mpi->planes[1] || mpi->planes[0] + y_size <= mpi->planes[1]);
 616         assert(mpi->planes[0] > mpi->planes[2] || mpi->planes[0] + y_size <= mpi->planes[2]);
 617         assert(mpi->planes[1] > mpi->planes[0] || mpi->planes[1] + c_size <= mpi->planes[0]);
 618         assert(mpi->planes[1] > mpi->planes[2] || mpi->planes[1] + c_size <= mpi->planes[2]);
 619         assert(mpi->planes[2] > mpi->planes[0] || mpi->planes[2] + c_size <= mpi->planes[0]);
 620         assert(mpi->planes[2] > mpi->planes[1] || mpi->planes[2] + c_size <= mpi->planes[1]);
 621     }
 622 #endif
 623
 624     /* Note, some (many) codecs in libavcodec must have stride1==stride2 && no changes between frames
 625      * lavc will check that and die with an error message, if its not true
 626      */
 627     pic->linesize[0]= mpi->stride[0];
 628     pic->linesize[1]= mpi->stride[1];
 629     pic->linesize[2]= mpi->stride[2];
 630
 631     pic->opaque = mpi;
 632 //printf("%X\n", (int)mpi->planes[0]);
 633 #if 0
 634 if(mpi->flags&MP_IMGFLAG_DIRECT)
 635     printf("D");
 636 else if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
 637     printf("S");
 638 else
 639     printf(".");
 640 #endif
 641     if(pic->reference){
 642         pic->age= ctx->ip_age[0];
 643
 644         ctx->ip_age[0]= ctx->ip_age[1]+1;
 645         ctx->ip_age[1]= 1;
 646         ctx->b_age++;
 647     }else{
 648         pic->age= ctx->b_age;
 649
 650         ctx->ip_age[0]++;
 651         ctx->ip_age[1]++;
 652         ctx->b_age=1;
 653     }
 654     pic->type= FF_BUFFER_TYPE_USER;
 655     return 0;
 656 }
 657
 658 static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic){
 659     mp_image_t *mpi= pic->opaque;
 660     sh_video_t *sh = avctx->opaque;
 661     vd_ffmpeg_ctx *ctx = sh->context;
 662     int i;
 663
 664 //printf("release buffer %d %d %d\n", mpi ? mpi->flags&MP_IMGFLAG_PRESERVE : -99, ctx->ip_count, ctx->b_count);
 665
 666     if(ctx->ip_count <= 2 && ctx->b_count<=1){
 667         if(mpi->flags&MP_IMGFLAG_PRESERVE)
 668             ctx->ip_count--;
 669         else
 670             ctx->b_count--;
 671     }
 672
 673     if (mpi) {
 674         // Palette support: free palette buffer allocated in get_buffer
 675         if (mpi->bpp == 8)
 676             av_freep(&mpi->planes[1]);
 677 #if CONFIG_XVMC
 678         if (IMGFMT_IS_XVMC(mpi->imgfmt)) {
 679             struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)pic->data[2]; //same as mpi->priv
 680             if(mp_msg_test(MSGT_DECVIDEO, MSGL_DBG5))
 681                 mp_msg(MSGT_DECVIDEO, MSGL_DBG5, "vd_ffmpeg::release_buffer (xvmc render=%p)\n", render);
 682             assert(render!=NULL);
 683             assert(render->xvmc_id == AV_XVMC_ID);
 684             render->state&=~AV_XVMC_STATE_PREDICTION;
 685         }
 686 #endif
 687         // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
 688         mpi->flags &= ~MP_IMGFLAG_IN_USE;
 689     }
 690
 691     if(pic->type!=FF_BUFFER_TYPE_USER){
 692         avcodec_default_release_buffer(avctx, pic);
 693         return;
 694     }
 695
 696     for(i=0; i<4; i++){
 697         pic->data[i]= NULL;
 698     }
 699 //printf("R%X %X\n", pic->linesize[0], pic->data[0]);
 700 }
 701
 702 // copypaste from demux_real.c - it should match to get it working!
 703 //FIXME put into some header
 704 typedef struct dp_hdr_s {
 705     uint32_t chunks;        // number of chunks
 706     uint32_t timestamp; // timestamp from packet header
 707     uint32_t len;        // length of actual data
 708     uint32_t chunktab;        // offset to chunk offset array
 709 } dp_hdr_t;
 710
 711 static void swap_palette(void *pal) {
 712     int i;
 713     uint32_t *p = pal;
 714     for (i = 0; i < AVPALETTE_COUNT; i++)
 715         p[i] = le2me_32(p[i]);
 716 }
 717
 718 // decode a frame
 719 static mp_image_t *decode(sh_video_t *sh, void *data, int len, int flags){
 720     int got_picture=0;
 721     int ret;
 722     vd_ffmpeg_ctx *ctx = sh->context;
 723     AVFrame *pic= ctx->pic;
 724     AVCodecContext *avctx = ctx->avctx;
 725     struct lavc_param *lavc_param = &sh->opts->lavc_param;
 726     mp_image_t *mpi=NULL;
 727     int dr1= ctx->do_dr1;
 728
 729     if(len<=0) return NULL; // skipped frame
 730
 731 //ffmpeg interlace (mpeg2) bug have been fixed. no need of -noslices
 732     if (!dr1)
 733     avctx->draw_horiz_band=NULL;
 734     if(ctx->vo_initialized && !(flags&3) && !dr1){
 735         mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE |
 736             (ctx->do_slices?MP_IMGFLAG_DRAW_CALLBACK:0),
 737             sh->disp_w, sh->disp_h);
 738         if(mpi && mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
 739             // vd core likes slices!
 740             avctx->draw_horiz_band=draw_slice;
 741         }
 742     }
 743
 744     avctx->hurry_up=(flags&3)?((flags&2)?2:1):0;
 745
 746     mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "vd_ffmpeg data: %04x, %04x, %04x, %04x\n",
 747            ((int *)data)[0], ((int *)data)[1], ((int *)data)[2], ((int *)data)[3]);
 748     ret = avcodec_decode_video(avctx, pic,
 749              &got_picture, data, len);
 750
 751     dr1= ctx->do_dr1;
 752     if(ret<0) mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
 753 //printf("repeat: %d\n", pic->repeat_pict);
 754 //-- vstats generation
 755     while(lavc_param->vstats){ // always one time loop
 756         static FILE *fvstats=NULL;
 757         char filename[20];
 758         static long long int all_len=0;
 759         static int frame_number=0;
 760         static double all_frametime=0.0;
 761         AVFrame *pic= avctx->coded_frame;
 762         double quality=0.0;
 763
 764         if(!fvstats) {
 765             time_t today2;
 766             struct tm *today;
 767             today2 = time(NULL);
 768             today = localtime(&today2);
 769             sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
 770                 today->tm_min, today->tm_sec);
 771             fvstats = fopen(filename, "w");
 772             if(!fvstats) {
 773                 perror("fopen");
 774                 lavc_param->vstats=0; // disable block
 775                 break;
 776                 /*exit(1);*/
 777             }
 778         }
 779
 780         // average MB quantizer
 781         {
 782             int x, y;
 783             int w = ((avctx->width  << ctx->lowres)+15) >> 4;
 784             int h = ((avctx->height << ctx->lowres)+15) >> 4;
 785             int8_t *q = pic->qscale_table;
 786             for(y = 0; y < h; y++) {
 787                 for(x = 0; x < w; x++)
 788                     quality += (double)*(q+x);
 789                 q += pic->qstride;
 790             }
 791             quality /= w * h;
 792         }
 793
 794         all_len+=len;
 795         all_frametime+=sh->frametime;
 796         fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
 797             ++frame_number, quality, len, (double)all_len/1024);
 798         fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
 799            all_frametime, (double)(len*8)/sh->frametime/1000.0,
 800            (double)(all_len*8)/all_frametime/1000.0);
 801         switch(pic->pict_type){
 802         case FF_I_TYPE:
 803             fprintf(fvstats, "type= I\n");
 804             break;
 805         case FF_P_TYPE:
 806             fprintf(fvstats, "type= P\n");
 807             break;
 808         case FF_S_TYPE:
 809             fprintf(fvstats, "type= S\n");
 810             break;
 811         case FF_B_TYPE:
 812             fprintf(fvstats, "type= B\n");
 813             break;
 814         default:
 815             fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
 816             break;
 817         }
 818
 819         ctx->qp_stat[(int)(quality+0.5)]++;
 820         ctx->qp_sum += quality;
 821         ctx->inv_qp_sum += 1.0/(double)quality;
 822
 823         break;
 824     }
 825 //--
 826
 827     if(!got_picture) return NULL;        // skipped image
 828
 829     if(init_vo(sh, avctx->pix_fmt) < 0) return NULL;
 830
 831     if(dr1 && pic->opaque){
 832         mpi= (mp_image_t *)pic->opaque;
 833     }
 834
 835     if(!mpi)
 836     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
 837         avctx->width, avctx->height);
 838     if(!mpi){        // temporary!
 839         mp_msg(MSGT_DECVIDEO, MSGL_WARN, MSGTR_MPCODECS_CouldntAllocateImageForCodec);
 840         return NULL;
 841     }
 842
 843     if(!dr1){
 844         mpi->planes[0]=pic->data[0];
 845         mpi->planes[1]=pic->data[1];
 846         mpi->planes[2]=pic->data[2];
 847         mpi->stride[0]=pic->linesize[0];
 848         mpi->stride[1]=pic->linesize[1];
 849         mpi->stride[2]=pic->linesize[2];
 850     }
 851
 852     if (!mpi->planes[0])
 853         return NULL;
 854
 855     if(avctx->pix_fmt==PIX_FMT_YUV422P && mpi->chroma_y_shift==1){
 856         // we have 422p but user wants 420p
 857         mpi->stride[1]*=2;
 858         mpi->stride[2]*=2;
 859     }
 860
 861 #ifdef WORDS_BIGENDIAN
 862     // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
 863     if (mpi->bpp == 8)
 864         swap_palette(mpi->planes[1]);
 865 #endif
 866 /* to comfirm with newer lavc style */
 867     mpi->qscale =pic->qscale_table;
 868     mpi->qstride=pic->qstride;
 869     mpi->pict_type=pic->pict_type;
 870     mpi->qscale_type= pic->qscale_type;
 871     mpi->fields = MP_IMGFIELD_ORDERED;
 872     if(pic->interlaced_frame) mpi->fields |= MP_IMGFIELD_INTERLACED;
 873     if(pic->top_field_first ) mpi->fields |= MP_IMGFIELD_TOP_FIRST;
 874     if(pic->repeat_pict == 1) mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
 875
 876     return mpi;
 877 }
 878
 879 #if CONFIG_XVMC || CONFIG_VDPAU
 880 static enum PixelFormat get_format(struct AVCodecContext *avctx,
 881                                     const enum PixelFormat *fmt){
 882     enum PixelFormat selected_format = fmt[0];
 883     int imgfmt;
 884     sh_video_t *sh = avctx->opaque;
 885     int i;
 886
 887     for(i=0;fmt[i]!=PIX_FMT_NONE;i++){
 888         imgfmt = pixfmt2imgfmt(fmt[i]);
 889         if(!IMGFMT_IS_XVMC(imgfmt) && !IMGFMT_IS_VDPAU(imgfmt)) continue;
 890         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_TryingPixfmt, i);
 891         if(init_vo(sh, fmt[i]) >= 0) {
 892             selected_format = fmt[i];
 893             break;
 894         }
 895     }
 896     imgfmt = pixfmt2imgfmt(selected_format);
 897     if(IMGFMT_IS_XVMC(imgfmt) || IMGFMT_IS_VDPAU(imgfmt)) {
 898         vd_ffmpeg_ctx *ctx = sh->context;
 899         avctx->get_buffer= get_buffer;
 900         avctx->release_buffer= release_buffer;
 901         avctx->draw_horiz_band = draw_slice;
 902         mp_msg(MSGT_DECVIDEO, MSGL_INFO, MSGTR_MPCODECS_XVMCAcceleratedMPEG2);
 903         assert(ctx->do_dr1);//these are must to!
 904         assert(ctx->do_slices); //it is (vo_)ffmpeg bug if this fails
 905         avctx->slice_flags=SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
 906     }
 907     return selected_format;
 908 }
 909 #endif /* CONFIG_XVMC || CONFIG_VDPAU */